Predictors of Occurrence and Timing of Post-Tonsillectomy Hemorrhage: A Case-Control Study

2020 ◽  
pp. 000348942097801
Author(s):  
Jennifer H. Gross ◽  
Miranda Lindburg ◽  
Dorina Kallogjeri ◽  
Michelle Molter ◽  
David Molter ◽  
...  
Keyword(s):  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Tertiary Care ◽  
Postoperative Bleeding ◽  
Case Control ◽  
Operative Intervention ◽  
Matched Pair ◽  
Monitoring Time ◽  
Respiratory Event ◽  
Control Study

Objective: To describe cases and timing of pediatric post-tonsillectomy hemorrhage (PTH), to evaluate predictors of PTH, and to determine the optimal amount of postoperative care unit (PACU) monitoring time. Study Design: Using the Pediatric Health Information System (PHIS) database and electronic medical records, a matched case-control study from 2005 to 2015 was performed. Setting: A single, tertiary-care institution. Subjects and Methods: Each case of PTH was matched with 1 to 4 controls for the following factors: age, sex, surgeon, and time of year. A total of 124 cases of PTH and 479 tonsillectomy controls were included. The rate and timing of postoperative bleeding were assessed, and matched pair analysis was performed using conditional logistic regression. Results: Our institutional PTH rate of 1.9% (130 of 6949) included 124 patients; 15% (19) were primary (≤24 hours), with 50% (9) occurring within 5 hours. Twenty-one percent (4 of 19) of primary PTH patients received operative intervention. Eighty-five percent (105 of 124) of all cases were secondary PTH, and 47% (49) of those patients received operative intervention. Cold steel (OR 1.9, 95% CI 1.1-3.3) and Coblation (OR 1.9, 95% CI 1.2-3.1) techniques and tonsillectomy alone (OR 3.7, 95% CI 1.9-7.2) increased odds of PTH. Patients who developed PTH had 4 times the odds of having a preceding postoperative respiratory event than controls (OR 4.0, 95% CI 1.6-10.0). Conclusion: We conducted a rigorous case-control study for PTH, finding that PTH was associated with use of cold steel and Coblation techniques and with tonsillectomy alone. Patients with a postoperative respiratory event may be more likely to develop a PTH and should be counseled accordingly. A PACU monitoring time of 4 hours is sufficient for outpatient tonsillectomy.

scholarly journals Risk factors for infection with carbapenem-resistant Klebsiella pneumoniae: a case-case-control study

2014 ◽  
pp. 54-60 ◽  
Author(s):  
Viviana Gómez Rueda ◽  
John Jairo Zuleta Tobón
Keyword(s):  
Risk Factors ◽  
Klebsiella Pneumoniae ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Tertiary Care ◽  
Case Control ◽  
Carbapenem Resistant ◽  
Group I ◽  
Tertiary Care Institution ◽  
Control Study

Objetive: To evaluate the association between quinolone exposure and the emergence of carbapenem-resistant Klebsiella pneumoniae (CRKP) and to estimate CRKP-specific mortality. Methods: Case-case-control study implemented in a tertiary care institution. Three groups of patients were analyzed: 61 consecutive cases of infection with CRKP (Group I); 61 randomly chosen cases of patients infected with carbapenem-sensitive Klebsiella pneumoniae (CSKP; Group II); and 122 randomly chosen controls without CRKP or CSKP infection. Matching was based on the length of stay in intensive care unit and the date of bacterial isolation. An active search was performed for patients with CRKP and CSKP infection, and prospective cases were included in the study. We compared the results for Groups I and II against those for the controls by using two conditional logistic regression analyses that included infection as the dependent variable and controlled for time at risk and co-morbidities. Results: Exposure to quinolones was not associated with CRKP infection: no association was found in the analysis of CRKP with the controls (OR= 1.7; 95% CI: 0.2-6.5) or in the analysis of CSKP against the controls (OR= 0.6; 95% CI: 0.2-1.6). Use of carbapenems (OR = 3.3; 95% CI: 1.2-9.3) and colonization with CRKP (OR = 3.3; 95% IC: 1.2-9.3) were specific risk factors for infection with CRKP. Mortality associated with CRKP was 61.3%. Conclusion: No association was found between exposure to quinolones and infection with CRKP; however, colonization by CRKP and use of carbapenems are risk factors for infection with CRKP.

scholarly journals Risk factors for bovine anthrax in Bangladesh, 2010–2014: a case-control study

2020 ◽  
Vol 148 ◽  
Author(s):  
F. I. Rume ◽  
M. R. Karim ◽  
C. R. Ahsan ◽  
M. Yasmin ◽  
P. K. Biswas
Keyword(s):  
Risk Factors ◽  
Case Control Study ◽  
Hot Spot ◽  
Conditional Logistic Regression ◽  
Herd Size ◽  
Case Control ◽  
Matched Pair ◽  
Matched Pair Analysis ◽  
History Of ◽  
Control Study

Abstract A matched case-control study was conducted in Bangladesh by enrolling case smallholdings of cattle affected with anthrax in the period of October 2010 to December 2014. The cases were initially reported by mass media and/or in surveillance reports from authorities concerned in the country. In total, 43 case smallholdings were enrolled. For each case, a control was matched by similarity in herd-size and rearing of animals, selected from a distantly located (within 3–10 km) place but within the same sub-district of the case farm. Data collected by administering a prototype questionnaire were analysed by matched-pair analysis and multivariable conditional logistic regression. Out of the 43 smallholdings, 41 were located in three adjoining districts: Pabna, Sirajganj and Tangail, apparently forming a spatial cluster, could be termed ‘anthrax hot spot’ in Bangladesh. Sick animal on farm or a nearby farm slaughtered in the recent past (odds ratio (OR) 12.2, 95% confidence interval (CI) 1.6–93.4, P = 0.016)), history of heavy rains occurring in the last 2 weeks preceding an outbreak (OR 13.1, 95% CI 1.2–147.1, P = 0.037) and disposing of dead animal into nearby water body (OR 11.9, 95% CI 1.0–145.3, P = 0.052) were independent risk factors for anthrax in cattle in the country.

An Outbreak of Pyodermas Among Neonates Caused by Ultrasound Gel Contaminated With Methicillin-SusceptibleStaphylococcus Aureus

2000 ◽  
Vol 21 (12) ◽  
pp. 761-764 ◽  
Author(s):  
Klaus Weist ◽  
Constanze Wendt ◽  
Lyle R. Petersen ◽  
Hans Versmold ◽  
Henning Rüden
Keyword(s):  
Hip Joint ◽  
Case Control Study ◽  
Tertiary Care ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
Case Control ◽  
University Hospital ◽  
Good Physical Condition ◽  
Rapd Pcr ◽  
Control Study

Objective:To investigate an outbreak of methicillin-susceptibleStaphylococcus aureus(MSSA); infections in a neonatal clinic.Design:Prospective chart review, environmental sampling, and genotyping by two independent methods: pulsed-field gel electrophoresis (PFGE) and randomly amplified polymorphic DNA polymerase chain reaction (RAPD-PCR). A case-control study was performed with 31 controls from the same clinic.Setting:A German 1,350-bed tertiary-care teaching university hospital.Results:There was a significant increase in the incidence of pyodermas with MSSA 10 neonates in good physical condition with no infection immediately after birth developed pyodermas. A shared spatula and ultrasound gel were the only identified infection sources. The gel contained MSSA and was used for hip-joint sonographies in all neonates. PFGE and RAPD-PCR patterns from 6 neonates and from the gel were indistinguishable and thus genetically related clones. The case-control study revealed no significant risk factor with the exception of cesarean section (P=.006). The attack rate by days of hip-joint sonography between April 15 and April 27, 1994, was 11.8% to 40%.Conclusions:Inappropriate hygienic measures in connection with lubricants during routine ultrasound scanning may lead to nosocomialS aureusinfections of the skin. To our knowledge this source ofS aureusinfections has not previously been described.

Risk factors associated with anthrax in cattle on smallholdings

2011 ◽  
Vol 140 (10) ◽  
pp. 1888-1895 ◽  
Author(s):  
P. K. BISWAS ◽  
M. Z. ISLAM ◽  
S. K. SHIL ◽  
R. K. CHAKRABORTY ◽  
S. S. U. AHMED ◽  
...  
Keyword(s):  
Risk Factors ◽  
Eichhornia Crassipes ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Study Data ◽  
Matched Pair ◽  
Matched Pair Analysis ◽  
Independent Risk Factors ◽  
Pair Analysis ◽  
Control Study

SUMMARYUnprecedented high rates of anthrax outbreaks have been observed recently in cattle and humans in Bangladesh, with 607 human cases in 2010. By enrolling 15 case and 15 control cattle smallholdings in the spatial zone in July–September 2010, we conducted a case-control study, data of which were analysed by matched-pair analysis and multivariable conditional logistic regression. Feeding animals with uprooted and unwashed grass [odds ratio (OR) 41·2, 95% confidence interval (CI) 3·7–458·8, P=0·003], and feeding water hyacinth (Eichhornia crassipes) (OR 22·2, 95% CI 1·2–418·7, P=0·039) were independent risk factors for anthrax in cattle.

scholarly journals Diabetes mellitus, anti-secretory drugs and other risk factors for campylobacter gastro-enteritis in adults: a case-control study

1997 ◽  
Vol 119 (3) ◽  
pp. 307-311 ◽  
Author(s):  
K. R. NEAL ◽  
R. C. B. SLACK
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Case Control ◽  
Postal Questionnaire ◽  
Foreign Travel ◽  
Drinking Milk ◽  
Campylobacter Infection ◽  
Control Study

The epidemiology of notified cases of campylobacter gastroenteritis in adults in Nottingham Health District was investigated using a case-control study with a postal questionnaire to ascertain data on risk factors. Over a 14-month period 531 cases (a 73% response rate of all laboratory confirmed cases) and 512 controls replied.Conditional logistic regression analysis was used to determine independent associations with infection. These included foreign travel (odds ratio (OR) 3·4; 95% confidence intervals (CI) 2·0–5·7), diabetes mellitus (OR 4·1, CI 1·1–17), medication with omeprazole (OR 3·5, CI 1·1–12) and H2 and H2 antagonists (OR 3·7, CI 1·3–15), contact with puppies (OR11·3, CI1·2–105), eating chicken (OR 1·4, CI 1·1–1·8) and drinking milk from bottles with tops damaged by a bird (OR 3·3, CI 1·0–11). Preparing main meals (OR 0·9, CI 0·8–1·0) and drinking delivered milk (OR 0·6, CI 0·4–0·9) were associated with a reduced risk of campylobacter infection.Foreign travel was reported in 25% of cases and another 15% had significant associations with other risk factors. The majority of cases, 60%, remained unexplained, indicating the need for further evolution of sporadic cases.

scholarly journals 717. Antibiotic treatment of Shiga toxin-producing Escherichia coli related gastroenteritis and the risk of hemolytic uremic syndrome: a population based matched case-control study in Japan

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S409-S410
Author(s):  
Shota Myojin ◽  
Kyongsun Pak ◽  
Mayumi Sako ◽  
Tohru Kobayashi ◽  
Takuri Takahashi ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Shiga Toxin ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Population Based ◽  
Case Control ◽  
Age Group ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

Abstract Background The role of therapeutic intervention, particularly antibiotics, for Shiga toxin-producing Escherichia coli (STEC) related infection is controversial. Methods We performed a population based matched case-control study to assess the association between treatment (antibiotics, antidiarrheal agents and probiotics) for STEC related infections and HUS development. We identified all STEC HUS patients as cases and matched five non-HUS patients as controls using the data from the National Epidemiological Surveillance of Infectious Diseases (NESID) between January 1, 2017, and December 31, 2018. Further medical information was obtained by standardized questionnaires answered by physicians who registered each patient. We used multivariate conditional logistic regression model to evaluate the association between exposures (use of antibiotics, use of antidiarrheal agents, days between disease onset and fosfomycin administration [within two or three days]) and the development of HUS, by matched odds ratios (OR) and 95% confidence intervals (CI). Covariates we used were sex, age group, area code, presence of diarrhea and other factors. We also performed subgroup analyses using age (adults and children) as a stratification factor. Results 7,760 STEC related patients were registered in the NESID. We selected patients who had a record of HUS diagnosis (n=182) and matched controls without HUS (n=910). After collecting standardized paper-based questionnaires, we enrolled 90 HUS patients and 371 non-HUS patients for analysis. In the main analysis, matched OR of fosfomycin was 0.75(0.47-1.20) in all ages, 1.41(0.51-3.88) in adults and 0.58(0.34-1.01) in children. Matched OR of antidiarrheal agents was 2.07(1.07-4.03) in all ages, 1.84(0.32-10.53) in adults, 2.65(1.21-5.82) in children. Matched OR of probiotics was 0.86(0.46-1.61) in all ages, 0.76(0.21-2.71) in adults, 1.00(0.48-2.09) in children. There was no significant association between the timing of fosfomycin use in the first two or five days of illness and HUS development in any age group. Conclusion Our results suggest that fosfomycin might decrease the risk of HUS in children younger than 15 years of age with STEC confirmed bacterial gastroenteritis. Disclosures All Authors: No reported disclosures

scholarly journals Potential risk factors for multiple sclerosis in Rio de Janeiro: a case-control study

2009 ◽  
Vol 67 (2a) ◽  
pp. 229-234 ◽  
Author(s):  
Kátia Regina Penha da Silva ◽  
Regina Maria Papais Alvarenga ◽  
Oscar Fernandez y Fernandez ◽  
Hélcio Alvarenga ◽  
Luiz Claudio Santos Thuler
Keyword(s):  
Risk Factors ◽  
Multiple Sclerosis ◽  
Potential Risk ◽  
Rio De Janeiro ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Case Control ◽  
Potential Risk Factors ◽  
Epidemiological Characteristics ◽  
Control Study

PURPOSE: To evaluate potential risk factors for the development of multiple sclerosis in Brazilian patients. METHOD: A case control study was carried out in 81 patients enrolled at the Department of Neurology of the Hospital da Lagoa in Rio de Janeiro, and 81 paired controls. A standardized questionnaire on demographic, social and cultural variables, and medical and family history was used. Statistical analysis was performed using descriptive statistics and conditional logistic regression models with the SPSS for Windows software program. RESULTS: Having standard vaccinations (vaccinations specified by the Brazilian government) (OR=16.2; 95% CI=2.3-115.2), smoking (OR=7.6; 95% CI=2.1-28.2), being single (OR=4.7; 95% CI=1.4-15.6) and eating animal brain (OR=3.4; 95% CI=1.2-9.8) increased the risk of developing MS. CONCLUSIONS: RESULTS of this study may contribute towards better awareness of the epidemiological characteristics of Brazilian patients with multiple sclerosis.

scholarly journals Peran program kelas ibu hamil terhadap pelaksanaan ASI eksklusif di Gunung Kidul

2017 ◽  
Vol 33 (7) ◽  
pp. 317
Author(s):  
Dwi Andayani ◽  
Ova Emilia ◽  
Djauhar Ismail
Keyword(s):  
Exclusive Breastfeeding ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Control Sample ◽  
Case Control ◽  
Bivariate Analysis ◽  
Significance Level ◽  
Breastfeeding Rate ◽  
Regression Tests ◽  
Control Study

Purpose This study aimed to determine the effect of the implementation of the antenatal class toward exclusive breastfeeding.Methods The research was a case-control study with a quantitative approach. This research was also supported by a qualitative approach which aimed to complement and reinforce the results obtained from the quantitative data. Sample cases were 135 exclusive breastfeeding infants aged 6-12 months, and the control sample were 135 not exclusive breastfeeding infants aged 6-12 month. Data analysis used the McNemar and conditional logistic regression tests with significance level of p = <0.05 and 95% confidence interval.Results Bivariate analysis showed that antenatal class affected exclusive breastfeeding p = 0.026 and OR = 1.80 (95% CI: 1.03 to 3.24). In the results of multivariate analysis after controlling by including support of her husband and the ANC p = 0.03 and OR = 1.86 (95% CI: 1.05 to 3.30). Mothers who attended antenatal class have exclusive breastfeeding rate 1.86 times higher compared to mothers who did not attend the antenatal class.Conclusion The antenatal class can directly affect exclusive breastfeeding, in spite of controlling the support of her husband and the ANC.

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